ISC Chapter 26

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From which parent did you acquire the gene for oureye color?

C. both

An individual has the genotype, Aa, for a particular trait. Such an individual is said to be ________, for that trait.

D. heterozygous

Although Mendel realized alleles that control a trait into different gametes, he did not know that the process we now call ________ was responsible

A. meiosis

What would the phenotype blood type be for an individual with the genotype iii?

C. this genotype is not allowed

The chemical substance called melanin is responsible for an individual's

C. B and D

The body's production of testosterone is accomplished by the

D. A and B

The two strands of DNA are held together by:

B. electromagnetism

RNA differs from DNA in that RNA

D. A and B

Gene therapy combines medicine with genetics in the hope that researchers may be able to

C. treat or cure sickle-cell anemia and cystic fibrosis

Early findings of the Human Genome Project provide

D. all of these

If a codon is UUG, what is the anticodon?

A. AAC

If a DNA coding strand is read as GATTAC, what is the non-coding strand?

B. CTAATG

If a female of blood type A crosses with a male of blood type B and the resulting child has blood type O - one would know this about the parents:

D. A and B

If someone has two alleles for a certain trait and the two alleles are different

B. 1/2 of the gametes will contain the dominant allele and 1/2 of the gametes will contain the recessive allele

Suppose a certain genetic characteristic were inherited as a dominant allele and inheritance of that allele resulted in death, how many generations would it take to rid the population of this condition?

A. one

The early work of this Augustinian monk would eventually lead to the modern scientific study of inherited characteristics:

D. Gregor Mendel

The observable characteristics of an organism:

B. phenotype

Mendel's experiments with ________ proved to be critical and advantageous in the formulation of his laws of heredity

C. pea plants

A ________ is used by geneticists in order to determine the probability of genotypes and phenotypes of the progeny of a particular cross

C. Punnett square

The dominance or recessiveness of genes does not tell the whole inheritance story. Today, geneticists recognize there are other important factors. Which of these does not belong in that group?

C. human culture

The SRY gene is only found on the

A. Y chromosome

Phenotypic variation classified in terms of how much or by what amount results from:

B. polygenic inheritance

One way a person born with Diabetes mellitus can delay this genetic condition is to:

A. avoid dietary sugar

Which of these is NOT one of the four properties that enable DNA to function as genetic material:

D. store energy

Which of these human cell types will lose its DNA and die over a period of a few months?

B. blood

The words of the DNA code are RNA's codon are________ letters long

D. 3

These molecules are responsible for picking up particular amino acids and transferring them to the ribosome for assembly into polypeptides:

A. tRNA

Sickle-cell anemia is a genetic disease of these cells:

D. red blood

Genetically modified organisms have been used to create:

D. all of these

By early 2003, the complete nucleotide sequence for all 23 pairs of human chromosomes had been established--this was the main goal of the:

B. HGP

One artificial means by which to copy selected segments of DNA is called: